From 9327c86fe76273b3b6a8473f33d02f58dc5a23b7 Mon Sep 17 00:00:00 2001
From: cketti <cketti@gmail.com>
Date: Thu, 27 Oct 2011 16:52:27 +0200
Subject: [PATCH] Use Locale.US when calling toUpperCase() on the generated
 MIME boundary

Fixes issue 3733
---
 src/com/fsck/k9/mail/internet/MimeMultipart.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/com/fsck/k9/mail/internet/MimeMultipart.java b/src/com/fsck/k9/mail/internet/MimeMultipart.java
index a59e11484..4ee381af4 100644
--- a/src/com/fsck/k9/mail/internet/MimeMultipart.java
+++ b/src/com/fsck/k9/mail/internet/MimeMultipart.java
@@ -6,6 +6,7 @@ import com.fsck.k9.mail.MessagingException;
 import com.fsck.k9.mail.Multipart;
 
 import java.io.*;
+import java.util.Locale;
 import java.util.Random;
 
 public class MimeMultipart extends Multipart {
@@ -44,7 +45,7 @@ public class MimeMultipart extends Multipart {
         for (int i = 0; i < 30; i++) {
             sb.append(Integer.toString(random.nextInt(36), 36));
         }
-        return sb.toString().toUpperCase();
+        return sb.toString().toUpperCase(Locale.US);
     }
 
     public String getPreamble() {